Space. The Final Frontier. The U.S.S. Enterprise embarks on a five year mission to explore the galaxy. The Enterprise is under the command of Captain James T. Kirk with First Officer Mr. Spock, from the planet Vulcan. With a determined crew, the Enterprise encounters Klingons, Romulans, time paradoxes, tribbles and genetic supermen led by Khan Noonian Singh. Their mission is to explore strange new worlds, to seek new life and new civilizations, and to boldly go where no man has gone before.
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see all options Availability data: JustWatch
- Seasons
- 3
- Episodes aired
- 79
- Latest aired
- S03E24
- Total runtime
- 2d 18h
Timeline when each season aired
- Season 1 September 1966 – April 1967 29 episodes
- Season 2 September 1967 – March 1968 26 episodes
- Season 3 September 1968 – June 1969 24 episodes
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S02E01 Amok Time
September 15 · 50min find the promo
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First Officer Spock returns to his home world for a brutal Vulcan mating ritual.
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S02E02 Who Mourns for Adonais?
September 22 · 51min find the promo
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The crew of the Enterprise are held captive by an alien who turns out to be the Greek god Apollo.
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S02E03 The Changeling
September 29 · 50min find the promo
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The crew of the USS Enterprise deals with an indestructible planet-destroying space probe.
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S02E04 Mirror, Mirror
October 6 · 50min find the promo
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A transporter mishap swaps Captain Kirk and his companions with their evil counterparts in a parallel universe. In the so-called Mirror Universe, the Enterprise is a ship of the Terran Empire, an organization as evil as the United Federation of Planets is benevolent.
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S02E05 The Apple
October 13 · 50min find the promo
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The crew of the Enterprise visits a mysterious paradisical planet controlled by a computer that is served by the local inhabitants.
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S02E06 The Doomsday Machine
October 20 · 51min find the promo
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The starship Enterprise and its heavily-damaged sister ship, the USS Constellation, must work together to stop an alien planet-killing machine headed for the heart of Federation territory.
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S02E07 Catspaw
October 27 · 50min find the promo
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Two powerful aliens threaten the well-being of the Enterprise and her crew.
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S02E08 I, Mudd
November 3 · 51min find the promo
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Captain Kirk has a second run-in with the conman, Harry Mudd. Mudd is now the supreme ruler of a planet of androids who cater to his every whim.
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S02E09 Metamorphosis
November 10 · 50min find the promo
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A shuttle crew from the USS Enterprise encounters a man out of history and his mysterious alien companion.
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S02E10 Journey to Babel
November 17 · 50min find the promo
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The Enterprise must transport dignitaries to a peace conference, with an assassin on the loose.
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S02E11 Friday's Child
December 1 · 50min find the promo
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The crew of the Enterprise become entangled in a planet's tribal power struggle.
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S02E12 The Deadly Years
December 8 · 50min find the promo
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Strange radiation exposes the command crew of the Enterprise to the effects of rapid aging.
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S02E13 Obsession
December 15 · 50min find the promo
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Captain James T. Kirk becomes obsessed with destroying a deadly entity he once encountered in his youth.
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S02E14 Wolf in the Fold
December 22 · 51min find the promo
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A series of bizarre murders points to Mr. Scott as the prime suspect.
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S02E15 The Trouble With Tribbles
December 29 · 50min find the promo
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The Enterprise must protect a very important shipment of grain from both Klingons and some adorable creatures called tribbles.
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S02E16 The Gamesters of Triskelion
January 5 · 50min find the promo
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Captain Kirk and his companions are abducted into slavery and trained to fight as gladiators for the gambling entertainment of three disembodied beings.
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S02E17 A Piece of the Action
January 12 · 50min find the promo
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The Enterprise visits a planet with an Earth-like 1920s gangster culture.
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S02E18 The Immunity Syndrome
January 19 · 50min find the promo
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The crew of the Enterprise encounters an energy-draining field which may be able to destroy the galaxy.
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S02E19 A Private Little War
February 2 · 51min find the promo
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The crew of the Enterprise discovers Klingon interference in the development of a formerly peaceful planet and is forced to help maintain a balance of power.
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S02E20 Return to Tomorrow
February 9 · 50min find the promo
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Ancient alien minds are given control of Captain Kirk's and First Officer Spock's bodies.
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S02E21 Patterns of Force
February 16 · 50min find the promo
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The crew of the Enterprise tracks down a Federation observer on a planet dominated by a "Naziesque" regime.
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S02E22 By Any Other Name
February 23 · 50min find the promo
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Beings from another galaxy commandeer the Enterprise in an attempt to return home.
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S02E23 The Omega Glory
March 1 · 50min find the promo
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Captain Kirk must find the cure to a deadly disease and put an end to another Starfleet captain's cultural interference.
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S02E24 The Ultimate Computer
March 8 · 50min find the promo
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A skeleton Enterprise crew are assigned to test a revolutionary computer system that is given total control of the ship.
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S02E25 Bread and Circuses
March 15 · 50min find the promo
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The Enterprise crew investigates the disappearance of a ship's crew on a planet that is a modern version of the Roman Empire.
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S02E26 Assignment: Earth
March 29 · 50min find the promo
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While back in time observing Earth in 1968, the Enterprise crew encounters the mysterious Gary Seven who has his own agenda on the planet.